Oil burner



Mar. 6, 1923. L447A67 E. .1. GRlFFlTH 4OIL BURNER Filed July ll, 1921 2 sheets-sheet l Evan Griffith may. 6, 1923; 1,447,467

E. J. GRiFF'aTi-i l OIL BURNER Filed July ll, 1921 2 sheetsfsheet 2 Evan J.' lr'ifvfih 31a/vanto@ Patented ar. 6, i923.

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Application filed July 1l, 1921. Serial No. 463,920.

To all whom t may concern Be it known that l, Evan' J. Gmrrrrn, a citizen of the United States, residing at Osage, in the county of Weston and State of Vyoming, haveI` invented certain new and useful Improvements in Oil Burners, of which the followingis a specification.

This invention relates to oil burners for furnaces, boilers, and 'the like, and the primary objects of t-he present invention, are. lirst to provide in a burner a novel means for facilitating and insuring thev thorough mixing and intermingling of the fuel and steam; second, to provide a novel arrangement of i5 the burner outlets, so as to insure proper drainage of the burner, and to readily ermit the cleaning of the burner and burner outlets' by steam pressure when so desired; and, third, to provide a novel means for introducing and controlling the inlet of thel oil and steam to the burner.

A still further object of the invention is to provide a burner of this character, -which will be durable and efhcient in use, one that will be'simple and easy to manufacture, and one which can be readily placed upon the market and incorporated with a furnace or boiler at a small cost.

With these and other objects in view, the invention consists in the novel construction, arrangement and formation of parts, as will be hereinafter more `specifically described, claimed and illustrated in the accompanying drawings, forming a part of this specification, in which drawings:

Figure 1 is a sideJ elevation of the improved burner showing the same in operative position in relation to a boiler, the boiler being shown in vertical section.

Figure 2 is a top plan view of the improved burner in operative position in relationto a furnace, the furnace being shown in horizontal section.

Figure 3 is an enlarged horizontal section i5 through the improved burner.

Figure l is a fragmentary bottom plan view thereof.

Figure 5 is a detail transverse section through the body portion of the burner.

Referring to the drawings in detail, wherein similar reference characters designate corresponding parts throughout the several views, the letter A indicates the iinproved burner; B, the means for introducing 55 the fuel and steam thereto; and C a furnace,

with which it is associated.

vdisposed inner tube 15, which The furnace or boiler C may be of the usual or any preferred construction, and has been merely shown for illustrating the use of the improved burner, and the relation of the improved burner thereto, when the same is in actual use. is shown the furnace or boiler includes the lire box 10 and the boiler 11, which is provided with a plurality of lues 12. lf so desired, the lire box l() may have a heap of loosely piled lire brick therein against which the flame of the burner can be projected. As shown, the heap of lire brick has been designated by the numoral 13. The front wall of the lire box is provided with the usual opening lil.

rlhe burner A includes a longitudinally has its: opposite ends communicating with the inclined branch pipes 16 and l?, which terminate in a single feed pipe 18. The inner tube 15 is disposed axially in a relatively large tubular casing 19, which has its opposite ends closed by end walls 20. As shown the branch pipes 16 and 17 project rearwardly through the ytubular casing 19. The inner tube 15 is provided with spaced rows of annularly arranged longitudinally extending slots 21, and if so desired, the slots of each row may be arranged in staggered relation to each other.

i The tubular casing 19 forms the mixing and cracking chamber for the steam and oil. and the arrangement of the slots 21 in the inner tube 15 insures that thc oil and steam will be directed into all portions of the casing in order that the oil and steam will be thoroughly intermingled, and to permit each burner tube, designated by the nu meral 22, to receive its full share of the combustible mixture.

The burner tubes 2Q are spaced 'equidistantly along the casingfl, and project tangentially from the lower surface of the casing thus insuring the proper drainage of the burner and casing and permitting the ready cleaning of the burner by steam pressure. lff so desired, these burners may have their bores contracted as at 23 in order to throw the flame into the furnace toward the fire brick and flue tubes 12.

If so desired, the burner tubes may be inclined, so as to project the flame toward the central portion of the boiler in order to prevent the burning of the lire side plates of the lire box of the furnace, when a relatively narrow furnace is being used with the burner. This has-been clearly shownin Figure 4l of 'the drawings.

The means B for introducing oil and steam into the burners A comprises a pipe system 25, which has communicating therewith intermedia-te its ends a steam pipe 26, which can be provided with a suitable hand operated valve 27. The pipe system 25 in rea'r of the steam pipe 26 is `provided with the oil or fuel pipe 28, and this pipe is also provided with a suitable hand operated valve 29 for controlling the Jflow of the oil or fuel into the pipe line 25. Thus it can be seen that the amount of oil and steam can be readily controlled independent of each other by means of the valves 2'? and 29. A Valve 30 of the globe or other hand operated type is arranged in the line' 25 forwardly of the steam and oil pipes, and forms means :for eon'ji'o'lling the liow of `oil. and steam into the line or feed pipe 18.

As clearly shown in Figures l and j2 of thedrawings, the burner A is yplaced in the hre box l() through the door `opening 14, and is arranged in such -a mannery as to permit 'the lflame from the burner tubes 22 to be directed toward the lire tubes 12, and the loosely -piled heap of re briclr 13.

By this arrangement of the burner tubes or nipples 22 on the casing 19, it can be seen that a perfectl drainage of the burner Ycan be had in order -to prevent any sediment or condensation to stand therein, and it-can be seen that when it is desired to clean the burner or the lire tubes, that it is merely necessary to close olf the valve 29and open the valves27 and 30, and thesteam pressure will readily force all obstructions or foreign `matter from the burner and the vburner tubes or nipples.

From the foregoing description, it can bey seen `that an exceptionally simple'and durable burner has been provided., in which the oil and 'steam' will be thoroughly intermin-gledand forced directly into'the fire box ofthe furnace, in such a manner that all of the fuel will beused, and that-sediment and condensation will be drained from `the burner.

Changes in ldetails `may bel made without departing from the spiritor scope of this invention but,

l claim zv l. An `oil burner comprising Aa longitudinally"extending casing, a longitudinally extending inner tube disposed axially within lthe casing and spaced at all points from the walls thereof, means for introducing -a `combustiblemixture into `the inner tube, the tube `being provided with a plurality of spaced slots arranged in annular formation at spaced points throughout the length thereof, toY permit the lmixture to flow into naam/ie? the casing at different points, and burner nipples carried' by the casingv 2. A burner comprising a casing, a longitudinally extending axially disposed inner tube arranged within the casing, means for introducing oil and steam into the inner tube, the inner tube having a plurality of spaced annularly disposed rows of slots formedi therein and extending throughout the length thereof for permitting. the mixture to flow into all parts ofthe casing, and a plurality of outwardly extending-nipples carried by the casing and .arranged intermediate the spaced annular disposed rows of slots. p

3. in oil burner comprising a longitudi.- nally extending casing, alongitudinally arranged axially disposed inner tube arranged in the casing, a-feed pipe, branch pipes extending from the feed pipe and communieating with the ends of the inner tube, the

inner tube having a I )lurality lof slots formed therein, and a plurality of spaced burner nipples carried by the casi-ng and extending tangentially therefrom at the lower endthereof. v y

el. An oil burner comprising atubular casing, a longitudinallyextending axially disposed inner tube arranged within the casing, a feed pipe, branchpipes communicating with the feed pipe-and with the terminals of the inner tube, the inner tube haying spaced rows of annularly arranged slots formed therein, the` slots of the rows lbeing arranged intermediateeach other, anda-.plurality of tangentially extending burner nipples formed on the casing and projecting forwardlyfrom the lowerlend thereof, the nipples lbeing arranged intermediate the' rows ofthe longitudinally extending annularly disposed slots.

5. In a burner, a body, an inner tube-arranged in the body having "a plurality of radially extending longitudinally disposed slots, a plurality of burner nipples formed on the casing, a feed pipe-branch pipes communicating with the feedpipe and with the terminals of the inner tube,- a line pipe, means connecting the line kpipe with the feed pipes, and asteam feed pipe communieating with the line pipe, an oil pipe communicating with the line `pipe in lrear of the steam pipe, and valves arranged inV the steam pipe and oil pipe, anda valvein the line pipe arranged forwardly of the -oiland steam pipes.

` 6. In an oil burner, a cylindrical casinfr, a cylindrical axially disposedinner tube a'rranged in the casing having distributorslots formed therein,I anda plurality of burner nipples carried by the casing and extending tangentially from the extreme lower end thereof.

EV-AN J. GRIFFITH. 

